Altered Patterns of Superficial Trunk Muscle Activation During Sitting in Nonspecific Chronic Low Back Pain Patients

Dankaerts, Wim; O’Sullivan, Peter; Burnett, Angus; Straker, Leon

doi:10.1097/01.brs.0000228728.11076.82

Cited by 211 publications

(180 citation statements)

References 34 publications

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“…It is possible that individuals with greater functional limitations would show changes in muscular activation parameters which would agree with the reports of previous studies [19][20][21][22] . However, the selection of participants with these characteristics was a deliberate decision, since the aim of the present study was to understand the relationships between changes in the activation patterns and mechanical LBP, and not the effects of high levels of pain and disabilities of muscular activity.…”

Section: Discussionsupporting

confidence: 87%

“…Seven complained of pain in the direction of extension, three in the direction of flexion, seven in both directions, and two did not show any specific patterns. Clinically, these individuals had a score of 28.58 [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38] Figure 2 shows the muscular latencies of all investigated muscles for the asymptomatic (2a) and LBP (2b) individuals. For the asymptomatic group, the muscular activation patterns were initiated by the semitendinosus, followed by the ipsilateral erector spinae, contralateral erector spinae and finished by the gluteus maximus.…”

Section: Subject Characteristicsmentioning

confidence: 99%

See 1 more Smart Citation

Electromyographic activity during active prone hip extension did not discriminate individuals with and without low back pain

Guimarães¹,

Sakamoto²,

Laurentino³

et al. 2010

Rev. bras. fisioter.

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Section: Discussionsupporting

confidence: 87%

Section: Subject Characteristicsmentioning

confidence: 99%

Electromyographic activity during active prone hip extension did not discriminate individuals with and without low back pain

Guimarães¹,

Sakamoto²,

Laurentino³

et al. 2010

Rev. bras. fisioter.

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show abstract

“…The results of Study III (Dankaerts et al, 2006a) demonstrated that no differences in trunk muscle activity were observed between healthy controls and a pooled nonspecific chronic LBP group in usual sitting. However, when the CS was applied differences were identified.…”

Section: Can Clinicians Agree On the Classification Of Nonspecific Chmentioning

confidence: 82%

The validity of O’Sullivan’s classification system (CS) for a sub-group of NS-CLBP with motor control impairment (MCI): Overview of a series of studies and review of the literature

Dankaerts

O’Sullivan

2011

Manual Therapy

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a b s t r a c tChronic Low Back Pain (LBP) remains a common, recalcitrant and costly problem for the individual sufferer and for society. Effective treatments that reduce the social and economic burden have yet to be established for the majority of chronic LBP cases. Lack of evidence for specific interventions has been blamed on the heterogeneity of the chronic LBP population as well as a lack of a patient centred biopsycho-social approach. This issue of heterogeneity has resulted in classification being considered the highest research priority in the area of chronic LBP. The potential for a 'wash-out effect' caused by the heterogeneity of the chronic LBP populations sampled for randomised controlled clinical trials (RCTs), has driven the need for classifying patients with nonspecific chronic LBP. A summary of a series of studies is outlined in this review paper. They represent a comprehensive investigation into the validity of O'Sullivan's proposed mechanism-based classification system (CS) for a sub-group of localized mechanically provoked nonspecific chronic LBP with motor control impairment (MCI). Further, the findings of these studies are discussed in relation to the relevant literature and the clinical implications arising are presented. Finally, the limitations of this research are outlined and recommendations for future research are made.

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“…Treatment for these individuals focuses on reducing fear avoidance and optimising spinal control during functional activity to avoid end-range repetitive strain, reduce spinal loading, and subsequently reduce peripheral nociceptor sensitivity [5]. Previous work has established distinct physical characteristics between two proposed MCI subgroups (Active Extension Pattern and Flexion Pattern) and healthy individuals in adolescent and adult populations, with alterations in spinal position sense, spinal kinematics and trunk muscle activity observed during static postures [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Non-specific chronic low back pain: differences in spinal kinematics in subgroups during functional tasks

et al. 2017

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Purpose A multidimensional classification approach suggests that motor control impairment subgroups exist in non-specific chronic low back pain (NSCLBP). Differences in sitting lumbar posture have been identified between two such subgroups [flexion pattern (FP) and active extension pattern (AEP)] and healthy individuals; however, functional spinal movement has not been explored. This study will evaluate whether NSCLBP subgroups exhibit regional spinal kinematic differences, compared to healthy individuals, during functional tasks. Methods Observational, cross-sectional study design. Spinal kinematics of 50 NSCLBP subjects (27 FP, 23 AEP) and 28 healthy individuals were investigated using 3D motion analysis (Vicon TM ) during functional tasks [reaching upwards, step down, step up, lifting, and replacing a box, stand-to-sit, sit-to-stand, bending to retrieve (and returning from retrieving) a pen from the floor]. Mean sagittal angle for the total thoracic, total lumbar, upper thoracic, lower thoracic, upper lumbar, and lower lumbar regions between groups was compared. Results Significant differences were observed in lower thoracic and upper lumbar regions between NSCLBP subgroups during most tasks. Significant differences were observed between the FP and healthy group in the lower thoracic region during stand-to-sit-to-stand tasks and bending (and returning from) to retrieve a pen from the floor. All significant results demonstrated the FP group to operate in comparatively greater flexion. Conclusions The thoraco-lumbar spine discriminated between FP and AEP, and FP and healthy groups during functional tasks. FP individuals demonstrated more kyphotic thoraco-lumbar postures, which may be pain provocative. No significant differences were observed between AEP and healthy groups, suggesting that alternative mechanisms may occur in AEP.

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Altered Patterns of Superficial Trunk Muscle Activation During Sitting in Nonspecific Chronic Low Back Pain Patients

Abstract: Subclassifying nonspecific chronic LBP patients revealed clear differences in sEMG activity during sitting between pain-free subjects and subgroups of nonspecific chronic LBP patients.

Cited by 211 publications

References 34 publications

Electromyographic activity during active prone hip extension did not discriminate individuals with and without low back pain

Electromyographic activity during active prone hip extension did not discriminate individuals with and without low back pain

The validity of O’Sullivan’s classification system (CS) for a sub-group of NS-CLBP with motor control impairment (MCI): Overview of a series of studies and review of the literature

Non-specific chronic low back pain: differences in spinal kinematics in subgroups during functional tasks

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